With its latest salvo launch, North Korea once again made clear that 600mm multiple rocket launchers (MRL), arguably the country’s most unique nuclear weapon, are central to its military plans.

Kim Jong Un’s inspection of a live-fire drill of 12 rockets by long-range artillery companies on March 14 marked the 25th launch of the system — known as the KN-25 by the U.S. intelligence community. 

The DPRK has launched around 90 of these rockets to date, making it undoubtedly the country’s most frequently fired missile.

With its large size, the KN-25 is essentially